Combined teeth-separator and mirror.



B. L. MILLER. COMBINED TEETH SEPARATOR AND MIRROR.

APPLICATION FILED JULY 9, 1912.

Patented Apr. 1, 1913.

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BENSON L. MILLER, 01? KINGSTON, NEW YORK.

COMBINED TEETH-SEPARATOR AND MIRROR.

Specification of Letters Patent.

Patented. Apr. 1,1913.

Application fi1ed 2fu1y 9, 1912f Serial No. 708,435.

To all whom it may concern:

Be it known that I, BENSON L. MILLER, a citizen of the United States,and a resident of Kingston, in the county of Ulster and State of NewYork, have invented a new and Improved Combined Teeth-Separator andMirror, of which the following is a full, clear, and exact description.

The invention relates to dental appliances, and its object is to providea new and improved form of combined teeth separator and mirror arrangedto permit of illuminating and reflecting the cavities of teeth to befilled, or to illuminate the teeth while polishing a completed filling.

For the purpose mentioned use is made of a teeth separator and a mirrorheld adjustably and removably on the inner portion of the saidseparator, these parts being arranged as hereinafter described and asdefined in the appended claim.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a perspective view of the combined teeth separator andmirror; Fig. 2 is a transverse section of the same as applied; Fig. 3 isan enlarged sectional plan view of the rear jaw, the mirror, stem andyoke, and showing -the parts in looking position; and Fig. 4 is asimilar view of the same showing the mirror stem in position forremoving it from the rear jaw.

The teeth separator consists essentially of a frame or yokeA having afront guideway A for a front jaw B to slide in, the yoke also having arear guideway A for a rear jaw C to slide in, the front and rearguideways A and A being connected with each other by side arches Aadapted to reach over the teeth in the mouth. The jaws B e and G are intransverse alinement with each other and are provided at their oppositeends with points adapted to pass between a pair of teeth with a view toseparate the same. A screw rod D screws in a nut E held on the outerguideway A of the yoke A, and the inner end of the said screw rod D ismounted to turn in a bearing F attached to the outer end of the outerjaw B, and the outer end of the said screw rod D is provided with a knobor a handle G for turning the screw rod D with a view to move the jaws Binward or outward when applying the dental appliance or removing it fromthe mouth. The rear jaw C is provided with a vertical opening C and witha rear transverse slot C and the said opening G is adapted to be engagedby the stem H of a mirror H disposed vertically on top of the jaw C andwith its reflecting surface eX- tending in a forward direction so as toilluminate and reflect the cavities of the teeth to be filled orotherwise treated. The stem H is provided at the rear side with a recessor notch H adapted to be engaged by the rear guideway A of the yoke soas to hold the mirror H in locked position on the jaw C, as will bereadily understood by reference to Figs. 2 and 3.

When the mirror H is in position on the rear jaw C and the separator isapplied in the usual manner as described then the mirror can be readilyturned to illuminate or reflect the cavities of teeth to be filled. Itis understood that in placing a gold or other filling into a toothcavity, the dentist is frequently obliged to reflect the cavity by useof a mirror held near the under or posterior surface of the tooth tothus illuminate the cavity. By the use of the mirror on the separatorthe dentist can readily turn the mirror to illuminate and reflect thedesired cavity, and at the same time the dentist has both hands free toattend to the filling of the cavity. The mirror is also of service indoing other dental work to the teeth. The mirror can be readily removedfrom the separator when it is desired to do so by giving a half turn tothe mirror with a view to move the notch or recess H out of engagementwith the rear guideway A to permit of lifting the mirror out ofengagement with the jaw C.

It is understood that the separator can be used without the mirror forseparating teeth in the usual manner.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

A dental appliance, comprising a teeth separator and a mirror, the saidteeth separator having a yoke, a front aw and a rear name to thisspecification in the presence of jaw, the jaws being silidable on thesaid y%ke tWo subscribing Witnesses. and tie said mirror avin a stenturna 1y mounted in the said rear j a w, the stem being BENSON M 5provided at one side With a recess engaged Witnesses:

by the rear end of the said yoke. M. E. KELLY,

In testimony whereof I have signed my D. G. ATKINS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, 10.6.

